Keeping batteries charge

[ARedmon]

I have a 2014 RAM 3500 Diesel and, since it isn't driven much during the winter, I thought I'd keep it on a battery tender to insure that it would start when I did need it. My question is: How do I hook up a tender to the truck with two batteries? Should I just attach positive and negative clips to one battery or should I attach the positive clip to one battery and the negative clip to the other battery?

 

[DavidC]

I have been hooking to the Pass. side for 20 years.

 

[Michaelsloft]

I have been hooking to the Pass. side for 20 years.

Exactly what I have been doing for more than 20 years too.

 

[mwilson]

I use two tenders. But nothing wrong with just one on the passenger side..

 

[handtools]

I also hook to the passenger side battery.

 

[AH64ID]

I hook to the drivers side. It’s the closest side to power for me.

Don’t get a cheap tender. You want a smart tender that won’t overcharge.

I have tried a NOCO 750 but it was a little too small for the dual batteries (works great for single batteries and small engine batteries). I now have a NOCO 3500. I hook it up with their 10’ extension and SAE connectors, so no alligator clips.

 

[Signal73]

I’ve been using this tender for a couple years on my tractor and truck as they don’t see much use, same as you. Hook to whatever battery you wish, power travels both ways through those cables.

Amazon product ASIN B00068XCQU

 

[AH64ID]

The NOCO 3500 is on sale at Amazon for $36.

I've never seen it priced this low... I won't tell you what I paid last spring.

Amazon product ASIN B004LWVEKS

 

[CVR222NV]

I have a NOCO 7200 and I charge from the passenger side. No issues.

 

[ARedmon]

Thanks guys!